CVE-2022-50129

Kernel memory corruption via SRP port lifetime mismatch

Published Jun 18, 2025 · Updated Aug 5, 2026

Use-after-free in the Linux kernel RDMA SRP target allows local users with CAP_SYS_ADMIN to trigger kernel memory corruption during target setup. The RDMA core can free struct srpt_port while LIO retains its embedded port data, so srpt_enable_tpg reads eight bytes through a stale lifetime relationship. Reaching the fault requires privileged access to the LIO target configfs interface; the published KASAN evidence demonstrates an invalid kernel read but does not establish remote reachability.

CVSS severity7.8
High
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the Linux kernel RDMA SRP target allows local users with CAP_SYS_ADMIN to trigger kernel memory corruption during target setup. The RDMA core can free struct srpt_port while LIO retains its embedded port data, so srpt_enable_tpg reads eight bytes through a stale lifetime relationship. Reaching the fault requires privileged access to the LIO target configfs interface; the published KASAN evidence demonstrates an invalid kernel read but does not establish remote reachability.

The record

CVE
CVE-2022-50129
Published
Jun 18, 2025
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jun 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.3
  2. Affected versionversion=a42d985bd5b234da8b61347a78dc3057bf7bb94d <388326bb1c32fcd09371c1d494af71471ef3a04b
  3. Affected versionversion=a42d985bd5b234da8b61347a78dc3057bf7bb94d <4ee8c39968a648d58b273582d4b021044a41ee5e
  4. Affected versionversion=a42d985bd5b234da8b61347a78dc3057bf7bb94d <b5605148e6ce36bb21020d49010b617693933128
  5. Affected versionversion=a42d985bd5b234da8b61347a78dc3057bf7bb94d <de95b52d9aabc979166aba81ccbe623aaf9c16a1
  6. Affected versionversion=a42d985bd5b234da8b61347a78dc3057bf7bb94d <e60d7e2462bf57273563c4e00dbfa79ee973b9e2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

The Linux Kernel Organization · Linuxversion=3.3; version=a42d985bd5b234da8b61347a78dc3057bf7bb94d <388326bb1c32fcd09371c1d494af71471ef3a04b; version=a42d985bd5b234da8b61347a78dc3057bf7bb94d <4ee8c39968a648d58b273582d4b021044a41ee5e; version=a42d985bd5b234da8b61347a78dc3057bf7bb94d <b5605148e6ce36bb21020d49010b617693933128; version=a42d985bd5b234da8b61347a78dc3057bf7bb94d <de95b52d9aabc979166aba81ccbe623aaf9c16a1; version=a42d985bd5b234da8b61347a78dc3057bf7bb94d <e60d7e2462bf57273563c4e00dbfa79ee973b9e2

Published CVSS scores

5.5Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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